Knitty just sent out an email announcing a special new fall project, Jackyll and hide.
What is it? A ski mask themed to resemble Jack Skellington from The Nightmare Before Christmas! Furthermore, Saskia de Feijter has designed her mask so that it can be worn as a perfectly normal-looking white knit hat: just flip up the bottom half. That means it'll be useful for the rest of the winter, too. Those sneaky ghosts!
This would make a great Halloween costume, along with the shirts you can buy that have the associated parts of the skeleton printed on them.
(Speaking of which: don't forget that the Disney Digital 3D version of The Nightmare Before Christmas is going to be playing in theaters for three weeks this year! If you love the movie, it's totally worth it.)